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ericlondon.com

Hadoop, Pig, Ruby, Map/Reduce, on OSX via Homebrew - Eric London's Blog

http://www.ericlondon.com/2014/08/01/hadoop-pig-ruby-map-reduce-on-osx-via-homebrew.html

Hadoop, Pig, Ruby, Map/Reduce, on OSX via Homebrew. In this blog post, Ill share some code and configurations I have used to setup and demo Hadoop, Pig, and Ruby Map/Reduce via Homebrew on OSX. Install Hadoop and Pig via Brew:. Version 2.4.1. Brew install hadoop # note: brew install pig did not work for me (for now), but I found a recipe that did work:. Brew install https:/ gist.githubusercontent.com/akiatoji/6d67a7fa470e1218dc5b/raw/dff23e5668e0a3855e91a661296503dc6701266a/pig.rb. Copy input file to hdfs.

ericlondon.com

Eric London's Blog - Ruby on Rails, Open Source, Linux, Mac, jQuery, JRuby, PHP, SQL, NoSQL, Servers - Page 5

http://www.ericlondon.com/page5

Eric London's Blog (Page 5). Drupal 6: Creating a Batch API operation to parse a large CSV file. Drupal 6: Programmatically submit a webform using drupal execute(). Drupal 6: Removing a column from a view for unauthenticated users using hook views pre build(). Drupal 6: Creating a Google Map showing user locations using the Content Profile, Location, and GMap modules. Setting up NAT and port forwarding to connect to a VirtualBox virtual machine for LAMP development. Drupal 6: Essential Drupal Modules.

ericlondon.com

JRuby Swing-based JButton clicking game - Eric London's Blog

http://www.ericlondon.com/2014/03/30/jruby-swing-based-jbutton-clicking-game.html

JRuby Swing-based JButton clicking game. I decided this weekend to create a [very] simple Swing-based game using JRuby; in a matter of hours. Although I spent most of my time failing to make it pretty with image sprites (I fell back on background colors), I ended up with a simple prototype. Define struct to represent a button. Define how many in a row collapse. Method to define RGB values for a button value. Create a new swing button. Add click action listener. Button click event handler.

ericlondon.com

Eric London's Blog - Ruby on Rails, Open Source, Linux, Mac, jQuery, JRuby, PHP, SQL, NoSQL, Servers - Page 4

http://www.ericlondon.com/page4

Eric London's Blog (Page 4). Drupal 7: Creating a Centos server installation for Apache, MySQL, Tomcat, PHP, Drupal, and Solr. Drupal 6: Setting up a script to ensure the Apache Solr java process is running. A BASH shell script to import a large number of CSV files into MySQL. Setting up a passwordless automated rsync backup. Drupal 6: Programmatically generate all images for each imagecache preset using a Drush PHP script. Drupal 6: Configuring a mobile Drupal site and making your theme mobile friendly.

ericlondon.com

Using Redis sets (unique lists) to track relationships between users and their friends, and making friend suggestions - Eric London's Blog

http://www.ericlondon.com/2015/03/08/using-redis-sets-unique-lists-to-track-relationships-between-users-and-their-friends-and-making-friend-suggestions.html

Using Redis sets (unique lists) to track relationships between users and their friends, and making friend suggestions. In this blog post Ill share some code I was tinkering with that uses Redis sets (unique lists) to track relationships between users and their friends. My intention was to create a bunch of users, add a number of friends for each user, and then make a friend suggestion based on a users friends. friends. Here are the guts of the User model module. file: lib/user.rb. Options must be a Hash.

ericlondon.com

Using JRuby native Queue to manage work across threads - Eric London's Blog

http://www.ericlondon.com/2015/06/13/using-jruby-native-queue-to-manage-work-across-threads.html

Using JRuby native Queue to manage work across threads. In this code snippet, Ill show an example of how to use a native Ruby Queue. To manage work across threads. I used JRuby to not be bound by a global interpreter lock. To generate random hex strings. Get number of cpu cores. Get number of terminal columns. Create new queue, and add each column number. Create a worker for number of cpu cores. Interate while q is not empty. Output character to show work is done. 2008 to 2016 Eric London.

ericlondon.com

Rails 4 submit modal form via AJAX and render JS response as table row - Eric London's Blog

http://www.ericlondon.com/2014/03/13/rails-4-submit-modal-form-via-ajax-and-render-js-response-as-table-row.html

Rails 4 submit modal form via AJAX and render JS response as table row. In this blog post, Ill demonstrate a common piece of functionality: adding a new model via a modal, submitting via ajax, and rendering a new table row server side. Rails4ajaxrender rails new . rails g scaffold Person first name:string last name:string rake db:migrate. Copied CSS and JS Bootstrap files:. App/assets/javascripts/bootstrap.min.js app/assets/stylesheets/bootstrap.min.css. Title Rails4 Ajax Render /title. If lt IE 9].

ericlondon.com

Ruby Redis Pub/Sub Job Queue - Eric London's Blog

http://www.ericlondon.com/2014/03/20/ruby-redis-pub-sub-job-queue.html

Ruby Redis Pub/Sub Job Queue. We use Gearman at work so naturally Ive been pondering simple alternatives. Obviously this code is not a 100% replacement for Gearman, but heres a (super) simple worker/job-queue that uses Redis to track job queues, and pub/sub to notify the workers of new tasks to complete. The main guts of the worker are defined in a simple module. file: lib/worker.rb. Make module methods class methods. Each worker gets a unique id. Module container for worker methods. To try it out:.

ericlondon.com

Eric London's Blog - Ruby on Rails, Open Source, Linux, Mac, jQuery, JRuby, PHP, SQL, NoSQL, Servers - Page 2

http://www.ericlondon.com/page2

Eric London's Blog (Page 2). Ruby: import iTunes to MySQL. Ruby on Rails 4 AJAX Form Example. Ruby code that opens a pipe to send data from a forked process to its parent and cleans up zombie threads. Ruby is not Javascript - Benchmarking Hash/Struct Performance. Ruby nmap script to scan IP range for wireless camera and push IP to web server. Ruby API development: module/class structure to set instance variables via do/block. Daily cron job to check for outdated Ruby gems via RVM. A simple HTTP Ruby clas...